Sometimes pushing back is in the client's best interest.
Imagine a client conference. Your client tells you their story, what they want and expect out of the legal proceedings.
However, what the client wants doesn’t equate with your views on how the matter should proceed – it’s not in the client’s best interest or might not be based on legal principles and legislation.
But you feel emotionally invested with the client and you want to fight their fight, so you say nothing.